Climatological Report (Monthly)
Issued by NWS Spokane, WA
Issued by NWS Spokane, WA
786
CXUS46 KOTX 011420 CCA
CLMLWS
CLIMATE REPORT
NATIONAL WEATHER SERVICE SPOKANE WA
719 AM PDT SAT JUN 01 2024
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...THE LEWISTON ID AIRPORT CLIMATE SUMMARY FOR THE MONTH OF MAY 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1881 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 104 05/28/1934
LOW 23 05/01/1954
HIGHEST MM MM MM 95 05/20
LOWEST 35 05/01 MM MM 43 05/07
05/02
05/10
AVG. MAXIMUM 72.1 72.0 0.1 79.6
AVG. MINIMUM 47.5 48.1 -0.6 53.6
MEAN 59.8 60.0 -0.2 66.6
DAYS MAX >= 90 0 1.0 -1.0 5
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 3.78 1978
MINIMUM T 1924
TOTALS 0.79 1.69 -0.90 0.71
DAILY AVG. 0.03 0.05 -0.02 0.02
DAYS >= .01 6 10.6 -4.6 9
DAYS >= .10 1 5.6 -4.6 1
DAYS >= .50 1 0.6 0.4 0
DAYS >= 1.00 0 0.1 -0.1 0
GREATEST
24 HR. TOTAL 0.59 05/05 TO 05/06 0.44
SNOWFALL (INCHES)
RECORDS
TOTAL 0.3 1916
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 13.3 12.7 0.6 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM MM
DEGREE DAYS
HEATING TOTAL 178 187 -9 66
SINCE 7/1 4544 4921 -377 MM
COOLING TOTAL 23 34 -11 119
SINCE 1/1 23 36 -13 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.5
HIGHEST WIND SPEED/DIRECTION 31/290 DATE 05/17
HIGHEST GUST SPEED/DIRECTION 45/300 DATE 05/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.36
NUMBER OF DAYS FAIR 18
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 4
AVERAGE RH (PERCENT) 49
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
MAY 2024 BROUGHT NEAR NORMAL TEMPERATURES AND BELOW NORMAL
PRECIPITATION TO SOUTHEAST WASHINGTON AND THE SOUTH IDAHO PANHANDLE.
THE MONTH STARTED OFF ON A COOL AND SHOWERY NOTE WITH HIGH
TEMPERATURES MAINLY IN THE 60S THROUGH THE 8TH. THE 4TH AND 5TH WAS
ESPECIALLY COOL AND WET WITH RAIN AMOUNTS BETWEEN 0.50-0.75 INCHES
COMMON. IN ADDITION, PULLMAN ONLY REACHED 48F FOR A HIGH TEMPERATURE
ON THE 5TH. THEN TEMPERATURE RAPIDLY WARMED AS STRONG HIGH PRESSURE
DEVELOPED WITH HIGH TEMPERATURES WARMING INTO THE UPPER 70S TO MID 80S
FROM THE 10TH THROUGH THE 16TH. A DRY COLD FRONT THEN DELIVERED WINDY
CONDITIONS WITH PEAK GUSTS ON THE 16TH OF 35-40 MPH AROUND RITZVILLE,
PULLMAN, AND LEWISTON. ON THE 22ND COOL TEMPERATURES RETURNED WITH
RAIN OVER THE REGION. THE PALOUSE AGAIN FAILED TO GET OUT OF THE 40S
WITH PULLMAN REACHING 49F.
NO RECORDS WERE SET DURING THE MONTH AT THE LEWISTON AIRPORT.